128 lines
2.7 KiB
C
128 lines
2.7 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* export.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/01/24 14:32:20 by lderidde #+# #+# */
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/* Updated: 2025/02/12 13:31:24 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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int is_export_valid(char *str)
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{
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char *equal;
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char *key_end;
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if (!ft_isalpha(*str) && str[0] != '_')
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return (0);
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equal = ft_strchr(str, '=');
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if (equal)
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{
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if (equal != str && *(equal - 1) == '+')
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key_end = equal - 1;
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else
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key_end = equal;
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}
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else
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key_end = str + ft_strlen(str);
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while ((++str) < key_end)
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{
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if (!ft_isalnum(*str) && *str != '_')
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return (0);
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}
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return (1);
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}
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char **key_value(char *str)
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{
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char **tmp;
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char *save;
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char *equal;
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char *key_end;
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tmp = malloc(sizeof(char *) * (2 + 1));
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if (!tmp)
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return (NULL);
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equal = ft_strchr(str, '=');
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if (*(equal - 1) == '+')
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key_end = equal - 1;
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else
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key_end = equal;
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tmp[0] = ft_substr(str, 0, key_end - str);
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if (equal - str == 0)
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tmp[1] = ft_strdup("");
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else
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{
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save = ft_substr(equal, 1, ft_strlen(equal) - 1);
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tmp[1] = ft_strtrim(save, "\"");
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free(save);
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}
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tmp[2] = NULL;
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return (tmp);
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}
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void print_arr(char **envp)
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{
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int i;
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char *equal;
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char **print;
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(void)equal;
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i = -1;
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while (envp[++i])
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{
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print = key_value(envp[i]);
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if (print[1])
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ft_printf("declare -x %s=\"%s\"\n", print[0], print[1]);
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else
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ft_printf("declare -x %s\n", print[0]);
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free_tab(print);
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}
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}
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int print_export(char **envp)
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{
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int i;
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int j;
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int len;
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i = -1;
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len = 0;
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while (envp[len])
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len++;
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while (++i < len - 1)
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{
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j = 0;
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while (j < len - i - 1)
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{
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if (ft_strncmp(envp[j], envp[j + 1],
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ft_strchr(envp[j], '=') - envp[j]) > 0)
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char_swap(&envp[j], &(envp[j + 1]));
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j++;
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}
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}
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print_arr(envp);
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return (0);
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}
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int builtin_export(char **arg, t_ast_n *head)
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{
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int i;
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i = 0;
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if (count_args(arg) == 1)
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return (print_export(head->msh->env));
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while (++i < count_args(arg))
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{
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if (is_export_valid(arg[i]))
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set_new_export(arg[i], head);
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else
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return (err_msg_cmd("export", arg[i], EXPRT_INV, 1));
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}
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return (0);
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}
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